Year	Number
1996	0.809140563011169
1998	0.876508176326752
2000	0.839712262153625
2002	0.83394581079483
2003	0.833284139633179
2004	0.826330423355103
2005	0.776517033576965
2006	0.984307050704956
2007	0.50260853767395
2008	0.365038484334946
2009	0.473168194293976
2010	0.458726167678833
2011	0.555818676948547
2012	0.72692596912384
2013	0.617867887020111
2014	-1.00557231903076
2015	-0.601677477359772
2016	-0.548375606536865
2017	-0.0639688521623611
2018	-0.0620704852044582
2019	-0.134759157896042
2020	-0.103149950504303
2021	-0.0742646679282188
2022	-0.0235836617648602